On one side is Amazon SQS a virtual queue that guarantees the delivery of messages from one system to another. In contrast, RabbitMQ is a conventional message broker. It ensures that the messages get read in the same order as been sent by delivering them in a first-in, first-out manner.

Pros of RabbitMQ

Scalability

It is versatile and easy. That is because load balancing and persistent message queuing need few lines of code. The central hub’s connection and the size of the message package make this system much faster and more flexible.

Efficiency

RabbitMQ works with C, C++,.NET, and Python. It implies that AMQP can incorporate cross-platform apps. Also it manages IoT devices.

Integrability

It supports several messaging protocols, delivery acknowledgment and a message queue. Clusters in RabbitMQ increase availability and bandwidth. In return it enables public and private cloud login and authorization.

Deployment

It’s a kind of software often used as a “middleware” element in larger OTP, giving the main node queue scalability and reliability. Moreover it facilitates sequential communications among apps and delivers data smoothly to multiple users.

Cons of RabbitMQ

Lags with maintenance

Extremely challenging to maintain, enabling several organizational applications to communicate. So the more extensive the system is more difficult it is to handle.

Slow and lagging system

Not good for transforming data at processing huge datasets.

Complex clustering

When RabbitMQ is used in clusters, the grouping has only a few features and is very complicated.

Poor recordkeeping

https://cloudinfrastructureservices.co.uk/rabbitmq-vs-sqs-whats-the-difference/#:~:text=On%20one%20side%20is%20Amazon,in%2C%20first%2Dout%20manner.